Removable window-sash



(No Model.)

, "w. 11. GROVE. REMOVABLE WINDOW SASH. No.566,168 Y Patented Aug. 18,-1896.

* UNITE STATES PATENT OFFICE.

\VILLIAMII. GROVE, OF OIROLEVILLE, OHIO.

REMOVABLE WlNDOW-SASH.

SPECIFICATION forming part of Letters Patent No. 566,168, dated August 18, 1896. Application fil May 11, 1896- Serial No. 591,085. (No model.)

To all whom, it may concern.-

Be it known that 1, WILLIAM H. GROVE, a citizen of the United States, residing at Gircleville, in the county of Pickaway and State of Ohio, have invented new and useful Improvements in Removable Window-Sashes, of which the following is a specification.

This invention relates to windows, and particularly to that class of windows comprising in their structure a window-sash provided on its opposite sides with extensible strips having formed on their outer faces ribs which are adapted to enter and travel in vertical grooves formed in the inner sides of the window-frame and springs interposed between the extensible strips and the sides of the sash for forcing said strips into engagement with the grooved sides of the frame, the whole forming a window that may be readily re moved from and replaced in the sash.

My invention has for its object to provide in a window of thenature described means for locking the extensible strips in their extended positions in order to prevent the disengagement of said strips from the frame without first manipulating the locking mechanism, and also to lock said strips in their retracted positions to facilitate the removal of the window from its frame.

To these ends my invention consists in the features and in the construction and combination of parts hereinafter described, and pointed out in the claims following the description, reference being had to the accompanying drawings,forming a part of this specification, wherein- Figure 1 is a vertical sectional view of the window-frame, the sides of the sashes being shown in elevation. Fig. 2 is a top plan edge view of one of the sashes, the frame being shown in section. Fig. 3 is a detail sectional view of one side of the sash and one of the extensible strips. Fig. 4 is a cross-sectional view of one of the side rails of the sash and its extensible strip. Fig. 5 is a detail view showing the locking mechanism in position for extending the strips, and Fig. 6 is a similar view showing the locking mechanism in position for holding the strips retracted.

Referring to the drawings, the numeral 1 indicates the window-frame, the side rails 2 of which are provided with vertical grooves 3.

on their outer faces, which enter the vertical grooves 3 of the frame and are adapted to travel therein. The strips 5 are groot ed, as at 7, on their inner faces to embrace or straddle the edges of the sash 4, and are each provided with two inwardly-projecting pins 8, that enter corresponding holes 10, formed in the edges of the sash at points near the top and bottom of the latter, and serve as guides for the extensible strips in the movement of the latter.

Disposed between the extensible strips and the edges of the sash are springs which operate to extend the strips, and said springs preferably consist of coiled springs 11, seated in recesses 12, formed in the edges of the sash. Attached to the upper and lower portions of the strips 5 are metallic straps 13, which are seated in the grooved edges of said strips and attached thereto by screws 14 or other suit able fasi'enings, and are each bent inwardly at a right angle to fit the upper and lower edges, respectively, of the strips and the upper and, lower rails of the sash. The inner end of each of said straps is struck up in an inward direction to form a guide 15, which fits and is adapted to travel in a slot 16, formed in the upper or lower edge of the sash.

Near the inner end of each strap 13 is formed an approximately semicircular slot 17, through which projects a cam-shaped button 18, that is journaled in a bushing 19, countersunk in the edge of the sash, the relative arrangement of the cam-button and slotted strap being such that the strap will be moved longitudinally in one direction or the other accordingly as the cam-button is rotated onehalf a revolution to the right or to the left, thus locking the extensible strips either in their extended or retracted positions, or by turning said cam-buttons one-quarter revolution or at a right angle to the strap said strips are locked in neither position, but

are held in their extended positions by the springs 11.

The operation of my improved window is as follows: Let it be assumed that the sash is in position in the frame and it is desired to remove the window for cleaning or any other purpose. The cam-buttons 18 then are turned to retract the extensible strips 5 from the grooved sides of the frame and lock them in their retracted positions, when the sash can be readily removed and may in like manner be replaced with the same ease. By turning the cam-buttons in the reverse direction the extensible strips are extended and forcibly engage the grooved sides of the frame and are locked in such extended positions, so as to prevent any vertical movement of the sash in the frame and also prevent the strips from being retracted to remove the sash. Again, by turning the cam-buttons a quarter-revolution the extensible strips are locked in neither the positions above described, but are held in their extended positions by the springs 11 with sufficient force to hold the sash at any desired point, but at the same time permit the sash to be raised and lowered with case. 1 have described but a single sash, but it will of course be understood that an upper and that one will be the duplicate of the other.

tises 20 and 21 are formed at the proper points in the top and sill of the frame to receive the cam-buttons and permit of the sashes being fully raised or lowered.

Having described my invention, What I claim is I 1. The combination with a grooved Windowframe, of a sash arranged to slide therein and provided on opposite sides with extensible strips having ribs for engaging the grooved sides of the frame, and locking mechanism for locking the extensible strips extended and retracted, substantially as described.

2. The combination with a grooved windowframe, of a sash arranged to slide therein and provided on opposite sides with extensible strips having ribs for engaging the grooved sides of the frame, and cam-locking devices for locking the extensible strips in both their retracted and extended positions, substantially as described and for the purpose specified.

3. The combination with a grooved windowframe, of a sash arranged to slide therein and provided on opposite sides with extensible strips having ribs for engaging the grooved sides of the frame, springs for normally extending the strips into engagement with the groovedsides of. the frame, and rotary cambuttons for positively locking the extensible strips in both their retracted and extended positions or for releasing said strips to permit them to be held extended merely by the said springs, substantially as described.

4. The combination with a grooved windowframe, and a sliding sash having extensible and retractible strips on its opposite sides, of plates secured to the ends of the strips, extending over the ends of the sash and provided with slots, and rotary cam-buttons carried by the sash, projecting through the slots 1 of the plates and acting against the edges of and lower sash will be fitted in each frame .i

the slots to hold the strips extended and re- 1 tracted, substantially as described. In practice rectangular recesses or mor- 5. The combination with a grooved windowframe of a sash arranged to slide therein and provided on opposite sides with extensible strips having ribs for engaging the grooved sides of the frame, springs for normally extending the strips into engagement with the I grooved sides of the frame, straps 13 attached to the opposite ends of the extensible strips and provided with slots 17, and cam-buttons 18 journaled in the upper and lower edges of the sash and projecting through said slots, said cam-buttons operating to move and lock said strips in both their extended and re tracted positions, substantially as described. In testimony whereof I have hereunto set my hand in presence of two subscribing witnesses.

W. H. GROVE. Witnesses:

ALBERT H. NoRnrs, NATHAN H. RoBBINs. 

